| 31,7 → 31,9 |
|---|
| |
| #include <arch/types.h> |
| #include <typedefs.h> |
| #include <arch/context.h> |
| |
| |
| #ifndef context_set |
| #define context_set(c, _pc, stack, size) \ |
| (c)->pc = (__address) (_pc); \ |
| 38,7 → 40,45 |
|---|
| (c)->sp = ((__address) (stack)) + (size) - SP_DELTA; |
| #endif /* context_set */ |
| |
| extern int context_save(context_t *c); |
| extern void context_restore(context_t *c) __attribute__ ((noreturn)); |
| extern int context_save_arch(context_t *c); |
| extern void context_restore_arch(context_t *c) __attribute__ ((noreturn)); |
| |
| /** Save register context. |
| * |
| * Save current register context (including stack pointers) |
| * to context structure. |
| * |
| * Note that call to context_restore() will return at the same |
| * address as the corresponding call to context_save(). |
| * |
| * @param c Context structure. |
| * |
| * @return context_save() returns 1, context_restore() returns 0. |
| */ |
| static inline int context_save(context_t *c) |
| { |
| return context_save_arch(c); |
| } |
| |
| /** Restore register context. |
| * |
| * Restore previously saved register context (including stack pointers) |
| * from context structure. |
| * |
| * Note that this function does not normally return. |
| * Instead, it returns at the same address as the |
| * corresponding call to context_save(), the only |
| * difference being return value. |
| * |
| * Note that content of any local variable defined by |
| * the caller of context_save() is undefined after |
| * context_restore(). |
| * |
| * @param c Context structure. |
| */ |
| static inline void context_restore(context_t *c) |
| { |
| context_restore_arch(c); |
| } |
| |
| #endif |